ADP3405数据手册ADI中文资料规格书

描述 Description

The ADP3405 is a multifunction power management system ICoptimized for GSM cell phones. The wide input voltage range of3.0 V to 7.0 V makes the ADP3405 ideal for both single cell Li-Ionand three cell NiMH designs. The current consumption of theADP3405 has been optimized for maximum battery life, featuringa ground current of only 150 µA when the phone is in standby(digital LDO, and SIM card supply active). An undervoltage lockout(UVLO) prevents the startup when there is not enough energyin the battery. All four integrated LDOs are optimized to powerone of the critical sub-blocks of the phone. Their novel anyCAP® architecture requires only very small output capacitors for stability, and the LDOs are insensitive to the capacitors’ equivalent series resistance (ESR). This makes them stable with any capacitor, including ceramic (MLCC) types for space-restricted applications.

特性 Features

• Handles all GSM Baseband Power Management Functions

• Four LDOs Optimized for Specific GSM Subsystems



• Charges Li-Mn Coin Cell for Real-Time Clock

• Charge Pump and Logic
Level Translators for 3 V
and 5 V GSM SIM Modules

• Narrow Body 4.4 mm 28-Lead
TSSOP Package